KG D6 BLOCK

The company said it anticipated challenges in selling the stake even as it, along with partners RIL and BP, challenge the govt's claim in the issue relating to migration of gas from neighbouring blocks.

ONGC, it said, also operates an adjoining block in the KG basin which is due for development where the technological break-through achieved by GSPC in its KG Block can be of immense help for expediting the development.